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CJ Investigations > Section 5 > Flashcards

Section 5 Flashcards

1
Q

priority of life

A
  1. citizens
  2. officers
  3. suspect
    save innocent life
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2
Q

tazers

A

ranges 20-25 ft
only if in a group of 2+
needs to penetrate the skin

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3
Q

classifications of death

A
  1. natural
  2. accidental
  3. suicide
  4. homicide
  5. undetermined
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4
Q

natural death

A

just happens
heart attack
old age

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5
Q

accidental

A

no intent
car accident

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6
Q

suicide

A

intentional taking of ones life
42-45,000 yearly

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7
Q

homicide

A

all murder is homicide, not all homicide is murder
24-26,000 yearly

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8
Q

popular homicide cities

A
  1. chicago
  2. philadelphia
  3. washington DC
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9
Q

justifiable homicide

A

homicide that is commanded or authorized by law, or that is done under circumstances of necessity of imminent threat

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10
Q

undetermined

A

drowning
no evidence of suicide or homicide

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11
Q

who determines COD

A

medical examiner
coroner

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12
Q

closed case of death

A

natural
accident
undetermined

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13
Q

investigated COD

A

suicide
homicide

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14
Q

autopsy

A

main purpose to determine COD
body taken to morgue
any evidence mark/tagged/turned to officer
collect everything together as is

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15
Q

autopsy steps

A

weigh
measure
photograph
turn over evidence

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16
Q

autopsy photography

A

at the end of each stage

17
Q

all deaths must be investigated if

A
  1. violent death
  2. any suspicion
  3. inmate deaths
  4. cause by disease that may constitute public health (covid)
  5. resulting from hazardous employment
18
Q

suicide investigation

A

all have to be treated as a homicide until proven otherwise
1. check to find a weapon near the body
2. find out if they were left or right handed
3. always seize the phone through a search warrant
4. talk to different people (family, counselor, friends)

19
Q

time of death

A

between investigator and ME/coroner to establish

20
Q

general guideline for body temperature

A

decreases 2-3 degrees in first hr
1-1.5 degrees for each hr until 18 hrs
then assume temp based on atmosphere assuming 98-99 degree start
+/- 30 min estimate

21
Q

contents of stomach

A

lunch/dinner time
create a window timeline

22
Q

body temp in larger people

A

decreases slower than smaller people

23
Q

rigor mortis definition

A

stiffening of joints in the body after death caused by chemical changes in muscle fiber

24
Q

rigor mortis

A

first noticed in small muscles (face) to larger muscles (max: 12-24 hrs)
can remain rigid for 3 days
starts to decompose after ~36 hrs

25
Q

rigor mortis factors

A

heat increases rate
cold decreases rate

26
Q

post-mortum lividity

A

starts 1.5-2 hrs after death
blood pools at the bottom/lowest levels of the body
blood is no longer in circulation
causes dark blue/purple discoloration

27
Q

effects of water

A

dead body sinks/remains emersed for 8-10 days in warm water and 2-3 weeks in cold water

28
Q

4 factors to determine in water

A
  1. in drowning, most curl into a semi-fetal position
  2. rigor mortis and lividity indicates if death prior to being in water (unnatural)
  3. victims eyes glisten if drowned and dry 5-10 minutes after being pulled out, dry immediately if died on land
  4. single-cell organisms will be in the lungs if accident/suicide/drowning, mouth and lips if homicide/moved
29
Q

gun shot wound-homicide

A

fired more than 2.5” away
angle/location that rules out self-infliction (back)
shot through clothing
no weapon is present

30
Q

gun shot-suicide

A

gun held against skin
wound in mouth/against tongue
weapon is present
dna on gun/bullet

31
Q

use of a knife

A

most stabbing deaths are homicides
knife cut worse than a bullet
heal one wound, bleed out the other

32
Q

defense wounds

A

cuts on hands/arms/legs/feet
victim attempts to fight off suspect

33
Q

cutting wounds

A

frequently result of suicide
most common cases with hesitation

34
Q

stabbing vs cutting homicide

A

find defense wounds on victim
find knife that went through clothing
no weapon found
usually injury to vital organs
body was moved

35
Q
A

CJ Investigations (5 decks)

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